Furnace Repair Bay Area: Gas, Electric, Heat Pump Systems

Technician hand replacing draft inducer motor inside an opened residential gas furnace

Gas, electric, and heat pump systems. Full safety checks on every visit.

$75 diagnostic

Brands we service and install: Daikin · Goodman · Carrier · Lennox · Trane · Rheem · American Standard · York See all brands we carry →

Gas furnace problems usually trace back to the ignitor, flame sensor, or draft inducer. Electric furnaces come back to heating elements and sequencers. Heat-pump-based systems need different diagnostics altogether, and that is where factory training pays off. We work with all three. Safety comes first on every gas furnace call: we test carbon monoxide levels, gas valve function, and heat exchanger integrity.

What’s included:

Full system inspection (burners, heat exchanger, blower, controls)
Carbon monoxide testing (gas furnaces)
Gas valve and pilot/ignitor diagnostics
Electrical component testing
Airflow and duct inspection
Written estimate before any repair
Emergency gas leak response protocol
Performance logs for next visit

Common Bay Area furnace failures:

Hot surface ignitor cracks (most common modern failure, $200 to $350 to replace)
Flame sensor carbon buildup (cleaning often fixes it; $150 to $200 if replacement is needed)
Draft inducer motor wear on systems past 12 years ($400 to $700)
Heat exchanger cracking on systems past 18 years (safety issue, usually means replacement; we show you the crack on camera before quoting)
Pilot light issues on older systems (almost all 1990s and earlier units)

When to replace, not repair:

A 15-plus-year furnace with a major component failure (heat exchanger crack, control board burn, multiple gas valve failures) is usually past the point where repair makes financial sense. The same applies if your home has reached the point where heat pump conversion qualifies for stacked rebates. We run that math at the estimate.

Gas safety:

We carry CO meters on every gas furnace call. If we find dangerous CO levels or a confirmed heat exchanger crack, we shut the system down before leaving. You get the documentation. The next step is yours.

What makes us different

Safety first, every visit. We test carbon monoxide levels, gas valve function, and heat exchanger integrity on every gas furnace job. Not optional: part of the diagnostic.

Owner reviews every estimate. Every estimate gets my personal review before it reaches you. For installations and complex service, I meet you on-site. For routine calls, our trained technicians arrive with my license number on the invoice.

All three heating types. Gas, electric, and heat-pump-based systems. Factory training on Daikin means we know the new heat pump heating systems that most shops have not trained on.

What to expect

Every job, repair or install, follows the same rhythm. No upsells dressed as "package tiers." No "today only" pricing. If the answer is "wait six months and re-evaluate," that is what we will say.

On-site visit
Andrew measures, photographs, and asks questions about your existing system. $75 diagnostic, credited toward any repair over $200.
Written estimate
Line-itemed, model-named, sized to a Manual J calculation. Sent same day, never verbal-only. Walk-aways are fine; no pressure.
Scheduled install
Same crew start to finish. Permit pulled where required. 10-year parts plus 10-year labor warranty with bi-annual maintenance plan in force.
Follow-through
We check the install at six months. If your utility bill did not move in the right direction, that is on us; we go back and find out why.

The diagnostic is seventy-five dollars and we credit it toward any repair over two hundred. If the answer is ‘your system is fine, here are the logs, call us next year,’ that is what the estimate will say.

Andrei Kuznetsov founder

Furnace Repair: common questions

My furnace keeps cycling on and off. What's wrong?

Usually one of three things: an overheating limit switch (airflow restriction, often a dirty filter), a failing flame sensor (carbon buildup), or a thermostat miscalibration. Easy to diagnose in one visit.

Is my furnace unsafe if it's making a new noise?

Depends on the noise. Clicks and pops on startup are usually normal thermal expansion. Banging, grinding, or high-pitched whistling warrants a visit. Any smell of gas: stop, leave the house, call PG&E at 1-800-743-5000 first, then call us.

When should I replace instead of repair?

If the furnace is 15-plus years old, the heat exchanger shows cracks (safety issue), or the repair cost is over $1,500, replacement usually makes more sense than the repair. Heat pump conversion picks up current rebates that often shift the math.

Do you do annual furnace tune-ups?

Yes. Our maintenance plan includes fall furnace inspection: combustion analysis, safety checks, and performance logging. Recommended before winter use.

Cities where we do this work

Tier-1 service area for furnace repair: Danville · San Ramon · Alamo · Blackhawk · Pleasanton · Dublin · Walnut Creek · Lafayette · Alameda · Piedmont · Pleasant Hill · Atherton · Hillsborough · Los Altos Hills .

Also across the Bay Area: Livermore · Concord · Orinda · Moraga · Martinez · San Jose · Santa Clara · Cupertino · Los Gatos · Saratoga · Sunnyvale · Mountain View · Palo Alto · Los Altos · Menlo Park · Oakland · Berkeley · Richmond · Fremont · Hayward · Union City · Newark · San Leandro · Castro Valley · Milpitas . See full service area.

Furnace Repair